JPS6316360Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a gas rice cooker with a heat-retaining jar.In particular, it improves the heat-retaining effect by effectively utilizing the hot air for heat-retaining by the heat-retaining heater, reduces the power consumption of the heat-retaining heater, and improves boiling over. This eliminates harmful effects such as blockage of supply and exhaust ports, and allows effective and safe heat retention while saving energy.

In a conventional gas rice cooker with a heating jar, combustion exhaust gas ascends through the exhaust passage formed between the rice cooking pot and the insulation wall, and is discharged outside the device through an exhaust port provided at the upper edge of the outer shell of the container. Because of this structure, the hot air for keeping warm from the keep-warm heater also flows through the exhaust passage, so the time that the hot air stays inside the vessel is extremely short, so the heat-keeping effect is significantly reduced. Since it is necessary to use a There is a risk that the supply and exhaust ports may become blocked due to boiling liquid boiling over, etc. Furthermore, since the air supply passage to the gas burner is long from the top to the bottom, incomplete combustion of the gas burner may occur due to insufficient air supply. There were drawbacks such as too many.

This idea was made in order to eliminate the various drawbacks of the conventional method. An exhaust passage is provided in the upper part of the partition wall equipped with a heat-retaining heater, and the inside exhaust passage is connected to the combustion chamber. The outer exhaust passage communicates with the air supply port provided on the outer shell of the stove part through the air outlet, and the outer exhaust passage communicates with the exhaust port provided on the lower periphery of the outer shell of the jar main body, so that high temperature hot air for keeping warm by the heat keeping heater is communicated. This invention relates to the invention of a gas rice cooker with a heat-retaining jar, which is characterized by a long residence time.

Hereinafter, one embodiment of the gas rice cooker with a warming jar, in which a jar body for cooking rice and keeping it warm is placed on a stove part equipped with a gas burner, will be explained in detail based on the drawings. It is a partition wall that surrounds the rice cooker 1 and stands approximately midway between the outer shell 2 of the rice cooker 1 and the rice cooker 1.
0 and is made of a heat insulating material. An inner exhaust passage 4 is formed between the partition wall 3 and the rice cooker 1, and an outer exhaust passage 5 is formed between the partition wall 3 and the outer shell 2 of the jar body A, and these are connected in a detour manner at the upper part. ing.

Reference numeral 8 denotes an air supply port provided on the bottom surface of the outer shell 7 of the stove part B of the gas rice cooker. It communicates with the inner exhaust passage 4. It goes without saying that the air supply port 8 may be provided on the bottom surface of the outer shell 7 of the stove part B as in the embodiment, or on the side surface of the outer shell 7. 9 is the lower part of the outer shell 2 of the jar body A, that is, the outer shell 2 of the jar body A.
An exhaust port is provided at the joint between the outer shell 7 of the cooking stove part B and communicates with the outer exhaust passage 5. The partition wall 3 is provided on the jar main body A side of the gas rice cooker so that it can be easily attached to and detached from the stove part B, but the above structure can also be applied to non-separable appliances. Reference numeral 15 denotes a heat insulating material, which is provided inside the outer shell 2 of the jar main body A in the embodiment shown in FIG. 1, but is provided outside the partition wall 3 in the embodiment shown in FIG. 16 is a gas nozzle, 17 is a lid body, 18
is a handle of the lid body 17.

In the above configuration, during rice cooking, the air supply to the gas burner 13 is caused by the draft effect of the combustion flame of the gas burner 13, which is caused by the secondary combustion air taken in from the air supply port 8 provided at the bottom of the outer shell 7 of the stove part B. At the same time, the liquid is properly supplied through the gap 14 between the juice pan 12 and the gas burner 13, and the combustion exhaust from the gas burner 13 ascends the inner exhaust passage 4, reversely detours at its upper end, and flows down the outer exhaust passage 5. Exhaust port 9
It is released outside the vessel. At this time, the balance between the air intake taken in from the air supply port 8 and the combustion exhaust gas released from the exhaust port 9 is maintained, resulting in stable combustion. After the rice is cooked, when the rice is to be kept warm, electricity is applied to the heat-retaining heater 10, and the high-temperature hot air slowly rises through the inner exhaust passage 4 in the same way as the combustion exhaust flow, turns around at the upper end, and slowly flows through the outer exhaust passage 5. It flows down and is discharged outside the vessel from the exhaust port 9 at the lower end.

As explained above, with this invention, the residence time of high-temperature hot air in the container by the heat-retaining heater is much longer than that of the conventional one, so heat loss is reduced and efficient heat-retention can be achieved. Therefore, the capacity of the heat-retaining heater is small, which reduces power consumption.In addition, the air supply port is provided at the bottom of the outer shell of the stove, and the exhaust port is provided at the bottom of the outer shell of the jar body. Because of this, there is no blockage caused by boiling liquid boiling over, and the length of the air supply path from the air supply port to the gas burner is extremely short, so there is no combustion failure due to insufficient air supply to the gas burner, which is a source of energy savings. It is possible to safely and effectively maintain heat.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of this invention, and FIG. 2 is a cross-sectional view showing a part where the heat-insulating material is attached at a different position. 1...Rice cooking pot, 2...Outer shell of the jar body A, 3
……Partition wall, 4…Inner exhaust passage, 5…Outer exhaust passage, 6…Combustion chamber, 7…Outer shell of the burner section B,
8...Air intake, 9...Exhaust.

Claims (1)

[Scope of utility model registration request] Inner and outer exhaust passages 4 and 5 are provided in the upper part of the partition wall 3 that stands between the rice cooker pot 1 and the outer shell 2 of the jar body A, and the inner and outer exhaust passages 4
is communicated with the air supply port 8 provided in the outer shell 7 of the stove part B via the combustion chamber 6 at the bottom of the rice cooker,
This gas rice cooker with a warming jar is characterized in that the outer exhaust passage 5 communicates with an exhaust port 9 provided at the lower peripheral edge of the outer shell 2 of the jar main body A.